martinibuster - 5:30 pm on Mar 7, 2013 (gmt 0)
Good observation 1Script, about the seemingly exclusive use of 160x600 and 336x280 ad units! :) RealCarTips.com also uses 728x90 ad units, but not often. I note where the publisher uses them below.
I don't even see ads except on the weekly tips section.
He features ads throughout the site, but typically one to two clicks in. Why would that be? Does user experience suffer? Or does he make more money herding ad clickers to the more lucrative money pages?
Digging into the code I see that the different sections have different Channel labels attached to the ads. Presumably this makes it easier to troubleshoot and improve ad performance.
Buyers Guide and Weekly tips sections feature unique tracking channels. The channel names are visible in the source code.
Now take a look at what is likely the publisher's money pages, where he lists autos by make and then one click down by the automobile model. He uses unique channels to track the top level and granular level ad units. Interestingly he uses a less agressive 728x90 unit for the top level pages [realcartips.com] then dials it up on the granular pages [realcartips.com] with a 336x280 rectangle, presumably the end of a visitor click path through the site.